Abstract
The excitation of magnetic singularities in ferromagnetic thin films by radio frequency currents and fields is of high technological interest. Theoretical and experimental work often focuses on the dynamics of vortices and not on antivortices as their topological counterparts with inverted winding number of the domain structure. A comprehensive analytical description is presented for vortices and antivortices excited by spatial homogeneous two-dimensional in-plane currents and fields. In particular, the case of rotational excitation is investigated that is known to exhibit an efficient and selective coupling to the intrinsic gyrotropic eigenmode but here shows a crucial dependence on the winding number. The analytical model is compared with numerical results obtained by micromagnetic simulations.
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